<!DOCTYPE html>
<html>
<head><meta name="generator" content="Hexo 3.9.0">
    

    

    



    <meta charset="utf-8">
    
    
    
    
    <title>Vue组件的定义及基本用法 | 欢迎参观小灰灰的网站哟 ヾ(◍°∇°◍)ﾉﾞ ~ | It&#39;s founded on March 9, 2019 and the open source address for the blog notes https://github.com/YUbuntu0109/YUbuntu0109.github.io</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    
    <meta name="theme-color" content="#3F51B5">
    
    
    <meta name="keywords" content="Vue">
    <meta name="description" content="学习笔记 : Vue组件的定义及基本的使用方法组件的出现,是为了拆分实例的代码量的,继而能够让我们以不同的组件来划分不同功能模块. 组件是可复用的Vue实例,所以它们与new Vue接收相同的选项,例如 data、computed、watch、methods以及生命周期钩子等 ..  组件化 : 从代码逻辑的角度进行划分,保证每个功能模块的职能单一 模块化 : 从UI设计的角度进行划分,保证前端方">
<meta name="keywords" content="Vue">
<meta property="og:type" content="article">
<meta property="og:title" content="Vue组件的定义及基本用法">
<meta property="og:url" content="http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/index.html">
<meta property="og:site_name" content="欢迎参观小灰灰的网站哟 ヾ(◍°∇°◍)ﾉﾞ ~">
<meta property="og:description" content="学习笔记 : Vue组件的定义及基本的使用方法组件的出现,是为了拆分实例的代码量的,继而能够让我们以不同的组件来划分不同功能模块. 组件是可复用的Vue实例,所以它们与new Vue接收相同的选项,例如 data、computed、watch、methods以及生命周期钩子等 ..  组件化 : 从代码逻辑的角度进行划分,保证每个功能模块的职能单一 模块化 : 从UI设计的角度进行划分,保证前端方">
<meta property="og:locale" content="en">
<meta property="og:updated_time" content="2019-10-31T05:19:50.685Z">
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="Vue组件的定义及基本用法">
<meta name="twitter:description" content="学习笔记 : Vue组件的定义及基本的使用方法组件的出现,是为了拆分实例的代码量的,继而能够让我们以不同的组件来划分不同功能模块. 组件是可复用的Vue实例,所以它们与new Vue接收相同的选项,例如 data、computed、watch、methods以及生命周期钩子等 ..  组件化 : 从代码逻辑的角度进行划分,保证每个功能模块的职能单一 模块化 : 从UI设计的角度进行划分,保证前端方">
    
        <link rel="alternate" type="application/atom+xml" title="欢迎参观小灰灰的网站哟 ヾ(◍°∇°◍)ﾉﾞ ~" href="/atom.xml">
    
    <link rel="shortcut icon" href="/favicon.ico">
    <link rel="stylesheet" href="//unpkg.com/hexo-theme-material-indigo@latest/css/style.css">
    <script>window.lazyScripts=[]</script>

    <!-- custom head -->
    

</head>

<body>
    <div id="loading" class="active"></div>

    <aside id="menu" class="hide" >
  <div class="inner flex-row-vertical">
    <a href="javascript:;" class="header-icon waves-effect waves-circle waves-light" id="menu-off">
        <i class="icon icon-lg icon-close"></i>
    </a>
    <div class="brand-wrap" style="background-image:url(/img/brand.jpg)">
      <div class="brand">
        <a href="/" class="avatar waves-effect waves-circle waves-light">
          <img src="/img/my-portrait.jpg">
        </a>
        <hgroup class="introduce">
          <h5 class="nickname">黄宇辉</h5>
          <a href="mailto:3083968068@qq.com" title="3083968068@qq.com" class="mail">3083968068@qq.com</a>
        </hgroup>
      </div>
    </div>
    <div class="scroll-wrap flex-col">
      <ul class="nav">
        
            <li class="waves-block waves-effect">
              <a href="/"  >
                <i class="icon icon-lg icon-home"></i>
                homepage
              </a>
            </li>
        
            <li class="waves-block waves-effect">
              <a href="/archives"  >
                <i class="icon icon-lg icon-archives"></i>
                Archives
              </a>
            </li>
        
            <li class="waves-block waves-effect">
              <a href="/tags"  >
                <i class="icon icon-lg icon-tags"></i>
                Tags
              </a>
            </li>
        
            <li class="waves-block waves-effect">
              <a href="/categories"  >
                <i class="icon icon-lg icon-th-list"></i>
                Categories
              </a>
            </li>
        
            <li class="waves-block waves-effect">
              <a href="https://github.com/YUbuntu0109" target="_blank" >
                <i class="icon icon-lg icon-github"></i>
                Github
              </a>
            </li>
        
            <li class="waves-block waves-effect">
              <a href="https://github.com/YUbuntu0109" target="_blank" >
                <i class="icon icon-lg icon-weibo"></i>
                Weibo
              </a>
            </li>
        
            <li class="waves-block waves-effect">
              <a href="/custom"  >
                <i class="icon icon-lg icon-link"></i>
                Test
              </a>
            </li>
        
      </ul>
    </div>
  </div>
</aside>

    <main id="main">
        <header class="top-header" id="header">
    <div class="flex-row">
        <a href="javascript:;" class="header-icon waves-effect waves-circle waves-light on" id="menu-toggle">
          <i class="icon icon-lg icon-navicon"></i>
        </a>
        <div class="flex-col header-title ellipsis">Vue组件的定义及基本用法</div>
        
        <div class="search-wrap" id="search-wrap">
            <a href="javascript:;" class="header-icon waves-effect waves-circle waves-light" id="back">
                <i class="icon icon-lg icon-chevron-left"></i>
            </a>
            <input type="text" id="key" class="search-input" autocomplete="off" placeholder="Search">
            <a href="javascript:;" class="header-icon waves-effect waves-circle waves-light" id="search">
                <i class="icon icon-lg icon-search"></i>
            </a>
        </div>
        
        
        <a href="javascript:;" class="header-icon waves-effect waves-circle waves-light" id="menuShare">
            <i class="icon icon-lg icon-share-alt"></i>
        </a>
        

        <!-- background music(Mar 11,2019 AM) -->
        <div>
            <iframe frameborder="no" border="0" marginwidth="0" marginheight="0" width=280 height=52 src="//music.163.com/outchain/player?type=2&id=438801642&auto=1&height=32"></iframe>
        </div>
        <!---------------------->
    </div>
</header>
<header class="content-header post-header">

    <div class="container fade-scale">
        <h1 class="title">Vue组件的定义及基本用法</h1>
        <h5 class="subtitle">
            
                <time datetime="2019-07-24T19:57:46.000Z" itemprop="datePublished" class="page-time">
  2019-07-24
</time>


            
        </h5>
    </div>

    


</header>


<div class="container body-wrap">
    
    <aside class="post-widget">
        <nav class="post-toc-wrap post-toc-shrink" id="post-toc">
            <h4>TOC</h4>
            <ol class="post-toc"><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#学习笔记-Vue组件的定义及基本的使用方法"><span class="post-toc-number">1.</span> <span class="post-toc-text">学习笔记 : Vue组件的定义及基本的使用方法</span></a><ol class="post-toc-child"><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#组件的注册"><span class="post-toc-number">1.1.</span> <span class="post-toc-text">组件的注册</span></a><ol class="post-toc-child"><li class="post-toc-item post-toc-level-4"><a class="post-toc-link" href="#全局组件注册方式"><span class="post-toc-number">1.1.1.</span> <span class="post-toc-text">全局组件注册方式</span></a></li><li class="post-toc-item post-toc-level-4"><a class="post-toc-link" href="#局部组件注册方式"><span class="post-toc-number">1.1.2.</span> <span class="post-toc-text">局部组件注册方式</span></a></li></ol></li><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#Prop"><span class="post-toc-number">1.2.</span> <span class="post-toc-text">Prop</span></a></li><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#自定义事件"><span class="post-toc-number">1.3.</span> <span class="post-toc-text">自定义事件</span></a></li><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#动态组件"><span class="post-toc-number">1.4.</span> <span class="post-toc-text">动态组件</span></a></li></ol></li></ol>
        </nav>
    </aside>


<article id="post-Vue组件的定义及基本用法"
  class="post-article article-type-post fade" itemprop="blogPost">

    <div class="post-card">
        <h1 class="post-card-title">Vue组件的定义及基本用法</h1>
        <div class="post-meta">
            <time class="post-time" title="2019-07-24 19:57:46" datetime="2019-07-24T19:57:46.000Z"  itemprop="datePublished">2019-07-24</time>

            


            

        </div>
        <div class="post-content" id="post-content" itemprop="postContent">
            <h2 id="学习笔记-Vue组件的定义及基本的使用方法"><a href="#学习笔记-Vue组件的定义及基本的使用方法" class="headerlink" title="学习笔记 : Vue组件的定义及基本的使用方法"></a>学习笔记 : Vue组件的定义及基本的使用方法</h2><p><em>组件的出现,是为了拆分实例的代码量的,继而能够让我们以不同的组件来划分不同功能模块. 组件是可复用的Vue实例,所以它们与<code>new Vue</code>接收相同的选项,例如 data、computed、watch、methods以及生命周期钩子等 ..</em></p>
<ul>
<li>组件化 : 从代码逻辑的角度进行划分,保证每个功能模块的职能单一</li>
<li>模块化 : 从UI设计的角度进行划分,保证前端方便UI组件的重用</li>
</ul>
<h3 id="组件的注册"><a href="#组件的注册" class="headerlink" title="组件的注册"></a>组件的注册</h3><h4 id="全局组件注册方式"><a href="#全局组件注册方式" class="headerlink" title="全局组件注册方式"></a>全局组件注册方式</h4><p><em>方式一 : 使用<code>Vue.extend</code>,及其简化模式</em><br><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"app"</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">my-component</span>&gt;</span><span class="tag">&lt;/<span class="name">my-component</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">simple-my-component1</span>&gt;</span><span class="tag">&lt;/<span class="name">simple-my-component1</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">simple-my-component2</span>&gt;</span><span class="tag">&lt;/<span class="name">simple-my-component2</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">script</span>&gt;</span></span><br><span class="line"><span class="actionscript">    <span class="comment">//注册组件</span></span></span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> component = Vue.extend(&#123;</span></span><br><span class="line"><span class="handlebars"><span class="xml">		template: '<span class="tag">&lt;<span class="name">h2</span>&gt;</span>Stay hungray,Stay foolish<span class="tag">&lt;/<span class="name">h2</span>&gt;</span>'</span></span></span><br><span class="line">	&#125;);</span><br><span class="line"><span class="actionscript">	Vue.component(<span class="string">'myComponent'</span>, component)</span></span><br><span class="line"></span><br><span class="line"><span class="actionscript">	<span class="comment">//简化模式1</span></span></span><br><span class="line"><span class="actionscript">	Vue.component(<span class="string">'simpleMyComponent1'</span>, Vue.extend(&#123;</span></span><br><span class="line"><span class="handlebars"><span class="xml">				template: '<span class="tag">&lt;<span class="name">h3</span>&gt;</span>Stay hungray,Stay foolish<span class="tag">&lt;/<span class="name">h3</span>&gt;</span>'</span></span></span><br><span class="line">	&#125;));</span><br><span class="line"></span><br><span class="line"><span class="actionscript">    <span class="comment">//简化模式2</span></span></span><br><span class="line"><span class="actionscript">    Vue.component(<span class="string">'simpleMyComponent2'</span>, &#123;</span></span><br><span class="line"><span class="handlebars"><span class="xml">				template: '<span class="tag">&lt;<span class="name">div</span>&gt;</span><span class="tag">&lt;<span class="name">h4</span>&gt;</span>Stay hungray,Stay foolish<span class="tag">&lt;/<span class="name">h4</span>&gt;</span><span class="tag">&lt;<span class="name">span</span>&gt;</span>data<span class="tag">&lt;/<span class="name">span</span>&gt;</span><span class="tag">&lt;/<span class="name">div</span>&gt;</span>'</span></span></span><br><span class="line">	&#125;);</span><br><span class="line"></span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> vm = <span class="keyword">new</span> Vue(&#123;</span></span><br><span class="line"><span class="actionscript">		el: <span class="string">'#app'</span>,</span></span><br><span class="line">		data: &#123;&#125;</span><br><span class="line">	&#125;);</span><br><span class="line"><span class="tag">&lt;/<span class="name">script</span>&gt;</span></span><br></pre></td></tr></table></figure></p>
<p><em>方式二 : 将<code>template</code>定义为独立标签,提高代码可读性</em><br><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">template</span> <span class="attr">id</span>=<span class="string">"myTemplate"</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">h2</span>&gt;</span>Stay hungray,Stay foolish<span class="tag">&lt;/<span class="name">h2</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">template</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"app"</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">simple-my-component</span>&gt;</span><span class="tag">&lt;/<span class="name">simple-my-component</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">script</span>&gt;</span></span><br><span class="line"><span class="actionscript">     <span class="comment">//注册组件</span></span></span><br><span class="line"><span class="actionscript">	Vue.component(<span class="string">'simpleMyComponent'</span>, Vue.extend(&#123;</span></span><br><span class="line"><span class="actionscript">		template: <span class="string">'#myTemplate'</span></span></span><br><span class="line">	&#125;));</span><br><span class="line"></span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> vm = <span class="keyword">new</span> Vue(&#123;</span></span><br><span class="line"><span class="actionscript">		el: <span class="string">'#app'</span>,</span></span><br><span class="line">		data: &#123;&#125;</span><br><span class="line">	&#125;);</span><br><span class="line"><span class="tag">&lt;/<span class="name">script</span>&gt;</span></span><br></pre></td></tr></table></figure></p>
<h4 id="局部组件注册方式"><a href="#局部组件注册方式" class="headerlink" title="局部组件注册方式"></a>局部组件注册方式</h4><p><em>方式一 : <code>components</code>选项用于为组件注册从外部引入的组件</em><br><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">template</span> <span class="attr">id</span>=<span class="string">"myTemplate"</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">h2</span>&gt;</span>this is my component<span class="tag">&lt;/<span class="name">h2</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">template</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"app"</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">my-component</span>&gt;</span><span class="tag">&lt;/<span class="name">my-component</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">script</span>&gt;</span></span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> myComponent = &#123;</span></span><br><span class="line"><span class="actionscript">		template: <span class="string">'#myTemplate'</span></span></span><br><span class="line">	&#125;</span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> vm = <span class="keyword">new</span> Vue(&#123;</span></span><br><span class="line"><span class="actionscript">		el: <span class="string">'#app'</span>,</span></span><br><span class="line">		components: &#123;</span><br><span class="line">			myComponent</span><br><span class="line">		&#125;</span><br><span class="line">	&#125;);</span><br><span class="line"><span class="tag">&lt;/<span class="name">script</span>&gt;</span></span><br></pre></td></tr></table></figure></p>
<p><em>方式二</em><br><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"app"</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">my-title1</span>&gt;</span><span class="tag">&lt;/<span class="name">my-title1</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">my-title2</span>&gt;</span><span class="tag">&lt;/<span class="name">my-title2</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">script</span>&gt;</span></span><br><span class="line"><span class="javascript">	<span class="keyword">let</span> myTitle1 = &#123;</span></span><br><span class="line"><span class="actionscript">		name: <span class="string">'myTitle'</span>,</span></span><br><span class="line"><span class="handlebars"><span class="xml">		template: '<span class="tag">&lt;<span class="name">h2</span>&gt;</span>Stdy hungry,Stdy foolish<span class="tag">&lt;/<span class="name">h2</span>&gt;</span>'</span></span></span><br><span class="line">	&#125;</span><br><span class="line"><span class="javascript">	<span class="keyword">let</span> myTitle2 = &#123;</span></span><br><span class="line"><span class="actionscript">		name: <span class="string">'myTitle2'</span>,</span></span><br><span class="line"><span class="handlebars"><span class="xml">		template: '<span class="tag">&lt;<span class="name">h3</span>&gt;</span>Stdy hungry,Stdy foolish<span class="tag">&lt;/<span class="name">h3</span>&gt;</span>'</span></span></span><br><span class="line">	&#125;</span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> vm = <span class="keyword">new</span> Vue(&#123;</span></span><br><span class="line"><span class="actionscript">		el: <span class="string">'#app'</span>,</span></span><br><span class="line">		components: &#123;</span><br><span class="line">			myTitle1,</span><br><span class="line">			myTitle2</span><br><span class="line">		&#125;</span><br><span class="line">    &#125;);</span><br><span class="line"><span class="tag">&lt;/<span class="name">script</span>&gt;</span></span><br></pre></td></tr></table></figure></p>
<h3 id="Prop"><a href="#Prop" class="headerlink" title="Prop"></a>Prop</h3><p><em>父组件在引用子组件的同时,可以通过属性绑定(v-bind)的形式把需要传递给子组件的数据,以<code>属性绑定</code>的形式,传递到子组件内部,供子组件使用,示例程序如下 :</em><br><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"app"</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">son-component</span> <span class="attr">v-bind:parentmsg</span>=<span class="string">"msg"</span>&gt;</span><span class="tag">&lt;/<span class="name">son-component</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">script</span>&gt;</span></span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> vm = <span class="keyword">new</span> Vue(&#123;</span></span><br><span class="line"><span class="actionscript">		el: <span class="string">'#app'</span>,</span></span><br><span class="line">		data: &#123;</span><br><span class="line"><span class="actionscript">			msg: <span class="string">'这是父组件中的数据'</span></span></span><br><span class="line">		&#125;,</span><br><span class="line">		components: &#123;</span><br><span class="line">			sonComponent: &#123;</span><br><span class="line"><span class="actionscript">				props: [<span class="string">'parentmsg'</span>], <span class="comment">//只读</span></span></span><br><span class="line"><span class="handlebars"><span class="xml">				template: '<span class="tag">&lt;<span class="name">h3</span>&gt;</span>这是子组件---&gt;</span><span class="template-variable">&#123;&#123;parentmsg&#125;&#125;</span><span class="xml"><span class="tag">&lt;/<span class="name">h3</span>&gt;</span>',</span></span></span><br><span class="line">			&#125;</span><br><span class="line">		&#125;</span><br><span class="line">	&#125;);</span><br><span class="line"><span class="tag">&lt;/<span class="name">script</span>&gt;</span></span><br></pre></td></tr></table></figure></p>
<h3 id="自定义事件"><a href="#自定义事件" class="headerlink" title="自定义事件"></a>自定义事件</h3><p><em>父组件向子组件传递方法,使用的是事件绑定机制,示例程序如下 :</em><br><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"app"</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">my-component</span> @<span class="attr">func</span>=<span class="string">"show"</span>&gt;</span><span class="tag">&lt;/<span class="name">my-component</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">script</span>&gt;</span></span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> myComponent = &#123;</span></span><br><span class="line"><span class="actionscript">		template: <span class="string">'#myTemplate'</span>,</span></span><br><span class="line">		methods: &#123;</span><br><span class="line">			getMethods() &#123;</span><br><span class="line"><span class="actionscript">				<span class="keyword">this</span>.$emit(<span class="string">'func'</span>, <span class="string">'你好,我是子组件!'</span>)</span></span><br><span class="line">			&#125;</span><br><span class="line">		&#125;</span><br><span class="line">	&#125;</span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> vm = <span class="keyword">new</span> Vue(&#123;</span></span><br><span class="line"><span class="actionscript">		el: <span class="string">'#app'</span>,</span></span><br><span class="line">		methods: &#123;</span><br><span class="line">			show(data) &#123;</span><br><span class="line"><span class="javascript">				<span class="built_in">window</span>.alert(<span class="string">'这是父组件中的方法,子组件传递过来的数据为:'</span> + data)</span></span><br><span class="line">			&#125;</span><br><span class="line">		&#125;,</span><br><span class="line">		components: &#123;</span><br><span class="line">			myComponent</span><br><span class="line">		&#125;</span><br><span class="line">	&#125;);</span><br><span class="line"><span class="tag">&lt;/<span class="name">script</span>&gt;</span></span><br></pre></td></tr></table></figure></p>
<h3 id="动态组件"><a href="#动态组件" class="headerlink" title="动态组件"></a>动态组件</h3><p><em>组件间的切换,方式一 : 使用<code>if-else</code>,示例程序如下 :</em><br><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"app"</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"flag=true"</span>&gt;</span>登录<span class="tag">&lt;/<span class="name">button</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"flag=false"</span>&gt;</span>注册<span class="tag">&lt;/<span class="name">button</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">login</span> <span class="attr">v-if</span>=<span class="string">"flag"</span>&gt;</span><span class="tag">&lt;/<span class="name">login</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">regist</span> <span class="attr">v-else</span>=<span class="string">"flag"</span>&gt;</span><span class="tag">&lt;/<span class="name">regist</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">script</span>&gt;</span></span><br><span class="line"><span class="actionscript">	Vue.component(<span class="string">'login'</span>, &#123;</span></span><br><span class="line"><span class="handlebars"><span class="xml">		template: '<span class="tag">&lt;<span class="name">h3</span>&gt;</span>这是登录组件<span class="tag">&lt;/<span class="name">h3</span>&gt;</span>'</span></span></span><br><span class="line">	&#125;);</span><br><span class="line"><span class="actionscript">	Vue.component(<span class="string">'regist'</span>, &#123;</span></span><br><span class="line"><span class="handlebars"><span class="xml">		template: '<span class="tag">&lt;<span class="name">h3</span>&gt;</span>这是注册组件<span class="tag">&lt;/<span class="name">h3</span>&gt;</span>'</span></span></span><br><span class="line">	&#125;);</span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> vm = <span class="keyword">new</span> Vue(&#123;</span></span><br><span class="line"><span class="actionscript">		el: <span class="string">'#app'</span>,</span></span><br><span class="line">		data: &#123;</span><br><span class="line"><span class="actionscript">			flag: <span class="literal">true</span></span></span><br><span class="line">		&#125;</span><br><span class="line">	&#125;);</span><br><span class="line"><span class="tag">&lt;/<span class="name">script</span>&gt;</span></span><br></pre></td></tr></table></figure></p>
<p><em>组件间的切换,方式二 : 使用<code>component</code>元素,示例程序如下 :</em><br><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"app"</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"componentName='login'"</span>&gt;</span>登录<span class="tag">&lt;/<span class="name">button</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"componentName='regist'"</span>&gt;</span>注册<span class="tag">&lt;/<span class="name">button</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"componentName='logout'"</span>&gt;</span>注销<span class="tag">&lt;/<span class="name">button</span>&gt;</span></span><br><span class="line">	<span class="tag">&lt;<span class="name">component</span> <span class="attr">:is</span>=<span class="string">"componentName"</span>&gt;</span><span class="tag">&lt;/<span class="name">component</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">script</span>&gt;</span></span><br><span class="line"><span class="actionscript">	Vue.component(<span class="string">'login'</span>, &#123;</span></span><br><span class="line"><span class="handlebars"><span class="xml">		template: '<span class="tag">&lt;<span class="name">h3</span>&gt;</span>这是登录组件<span class="tag">&lt;/<span class="name">h3</span>&gt;</span>'</span></span></span><br><span class="line">	&#125;);</span><br><span class="line"><span class="actionscript">	Vue.component(<span class="string">'regist'</span>, &#123;</span></span><br><span class="line"><span class="handlebars"><span class="xml">		template: '<span class="tag">&lt;<span class="name">h3</span>&gt;</span>这是注册组件<span class="tag">&lt;/<span class="name">h3</span>&gt;</span>'</span></span></span><br><span class="line">	&#125;);</span><br><span class="line"><span class="actionscript">	Vue.component(<span class="string">'logout'</span>, &#123;</span></span><br><span class="line"><span class="handlebars"><span class="xml">		template: '<span class="tag">&lt;<span class="name">h3</span>&gt;</span>这是注销组件<span class="tag">&lt;/<span class="name">h3</span>&gt;</span>'</span></span></span><br><span class="line">	&#125;);</span><br><span class="line"><span class="actionscript">	<span class="keyword">var</span> vm = <span class="keyword">new</span> Vue(&#123;</span></span><br><span class="line"><span class="actionscript">		el: <span class="string">'#app'</span>,</span></span><br><span class="line">		data: &#123;</span><br><span class="line"><span class="actionscript">			componentName: <span class="string">'login'</span> <span class="comment">//default</span></span></span><br><span class="line">		&#125;</span><br><span class="line">	&#125;);</span><br><span class="line"><span class="tag">&lt;/<span class="name">script</span>&gt;</span></span><br></pre></td></tr></table></figure></p>

        </div>

        <blockquote class="post-copyright">
    
    <div class="content">
        
<span class="post-time">
    Last updated: <time datetime="2019-10-31T05:19:50.685Z" itemprop="dateUpdated">2019-10-31 05:19:50</time>
</span><br>


        
    </div>
    
    <footer>
        <a href="http://yoursite.com">
            <img src="/img/my-portrait.jpg" alt="黄宇辉">
            黄宇辉
        </a>
    </footer>
</blockquote>

        
<div class="page-reward">
    <a id="rewardBtn" href="javascript:;" class="page-reward-btn waves-effect waves-circle waves-light">赏</a>
</div>



        <div class="post-footer">
            
	<ul class="article-tag-list"><li class="article-tag-list-item"><a class="article-tag-list-link" href="/tags/Vue/">Vue</a></li></ul>


            
<div class="page-share-wrap">
    

<div class="page-share" id="pageShare">
    <ul class="reset share-icons">
      <li>
        <a class="weibo share-sns" target="_blank" href="http://service.weibo.com/share/share.php?url=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/&title=《Vue组件的定义及基本用法》 — 欢迎参观小灰灰的网站哟 ヾ(◍°∇°◍)ﾉﾞ ~&pic=http://yoursite.com/img/my-portrait.jpg" data-title="微博">
          <i class="icon icon-weibo"></i>
        </a>
      </li>
      <li>
        <a class="weixin share-sns wxFab" href="javascript:;" data-title="微信">
          <i class="icon icon-weixin"></i>
        </a>
      </li>
      <li>
        <a class="qq share-sns" target="_blank" href="http://connect.qq.com/widget/shareqq/index.html?url=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/&title=《Vue组件的定义及基本用法》 — 欢迎参观小灰灰的网站哟 ヾ(◍°∇°◍)ﾉﾞ ~&source=My Personal Website For Blog" data-title=" QQ">
          <i class="icon icon-qq"></i>
        </a>
      </li>
      <li>
        <a class="facebook share-sns" target="_blank" href="https://www.facebook.com/sharer/sharer.php?u=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/" data-title=" Facebook">
          <i class="icon icon-facebook"></i>
        </a>
      </li>
      <li>
        <a class="twitter share-sns" target="_blank" href="https://twitter.com/intent/tweet?text=《Vue组件的定义及基本用法》 — 欢迎参观小灰灰的网站哟 ヾ(◍°∇°◍)ﾉﾞ ~&url=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/&via=http://yoursite.com" data-title=" Twitter">
          <i class="icon icon-twitter"></i>
        </a>
      </li>
      <li>
        <a class="google share-sns" target="_blank" href="https://plus.google.com/share?url=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/" data-title=" Google+">
          <i class="icon icon-google-plus"></i>
        </a>
      </li>
    </ul>
 </div>



    <a href="javascript:;" id="shareFab" class="page-share-fab waves-effect waves-circle">
        <i class="icon icon-share-alt icon-lg"></i>
    </a>
</div>



        </div>
    </div>

    
<nav class="post-nav flex-row flex-justify-between">
  
    <div class="waves-block waves-effect prev">
      <a href="/2019/07/24/一个基于Vue的简单信息管理页/" id="post-prev" class="post-nav-link">
        <div class="tips"><i class="icon icon-angle-left icon-lg icon-pr"></i> Prev</div>
        <h4 class="title">一个基于Vue的简单信息管理页</h4>
      </a>
    </div>
  

  
    <div class="waves-block waves-effect next">
      <a href="/2019/07/23/Vue-js的自定义指令与过滤器/" id="post-next" class="post-nav-link">
        <div class="tips">Next <i class="icon icon-angle-right icon-lg icon-pl"></i></div>
        <h4 class="title">Vue.js的自定义指令与过滤器</h4>
      </a>
    </div>
  
</nav>



    




















</article>

<div id="reward" class="page-modal reward-lay">
    <a class="close" href="javascript:;"><i class="icon icon-close"></i></a>
    <h3 class="reward-title">
        <i class="icon icon-quote-left"></i>
        thanks ~
        <i class="icon icon-quote-right"></i>
    </h3>
    <div class="reward-content">
        
        <div class="reward-code">
            <img id="rewardCode" src="/img/Wechat_appreciates.png" alt="打赏二维码">
        </div>
        
    </div>
</div>



</div>

        <footer class="footer">
    <div class="top">
        

        <p>
            
                <span><a href="/atom.xml" target="_blank" class="rss" title="rss"><i class="icon icon-lg icon-rss"></i></a></span>
            
            <span>This blog is licensed under a <a rel="license" href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>.</span>
        </p>
    </div>
    <div class="bottom">
        <!-- 统计网站用户访问量. 技术支持：不蒜子(http://busuanzi.ibruce.info/) ————> Mar 13,2019 -->
        <p>
            <font style='font-size: 12px;color:springgreen'>
                    <div align="center">
                        <!-- 安装脚本 -->
                        <script async src="//busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js"></script>
                        <!-- 安装标签 -->
                        <span id="busuanzi_container_site_pv">
                            ◎用户总访问量 : <span id="busuanzi_value_site_pv"></span> 次 ~ &nbsp&nbsp
                        </span>
                        <span id="busuanzi_container_site_uv">
                            ◎总访客数(（づ￣3￣）づ╭❤～) : <span id="busuanzi_value_site_uv"></span>人 ~
                        </span>
                    </div>
                </font>
            </p>
            <!---------->
            <p>
                <font style='font-size: 10px'>
                    <span>黄宇辉 &copy; 2019</span>
                    <span>
                        
                        Blog source <a href="https://github.com/YUbuntu0109/YUbuntu0109.github.io" target="_blank">Github</a> 
                        Power by <a href="http://hexo.io/" target="_blank">Hexo</a>
                        Theme <a href="https://github.com/yscoder/hexo-theme-indigo" target="_blank">indigo</a>
                    </span>
                </font>
            </p>
        </div>
    </footer>
    </main>
    <div class="mask" id="mask"></div>
<a href="javascript:;" id="gotop" class="waves-effect waves-circle waves-light"><span class="icon icon-lg icon-chevron-up"></span></a>



<div class="global-share" id="globalShare">
    <ul class="reset share-icons">
      <li>
        <a class="weibo share-sns" target="_blank" href="http://service.weibo.com/share/share.php?url=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/&title=《Vue组件的定义及基本用法》 — 欢迎参观小灰灰的网站哟 ヾ(◍°∇°◍)ﾉﾞ ~&pic=http://yoursite.com/img/my-portrait.jpg" data-title="微博">
          <i class="icon icon-weibo"></i>
        </a>
      </li>
      <li>
        <a class="weixin share-sns wxFab" href="javascript:;" data-title="微信">
          <i class="icon icon-weixin"></i>
        </a>
      </li>
      <li>
        <a class="qq share-sns" target="_blank" href="http://connect.qq.com/widget/shareqq/index.html?url=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/&title=《Vue组件的定义及基本用法》 — 欢迎参观小灰灰的网站哟 ヾ(◍°∇°◍)ﾉﾞ ~&source=My Personal Website For Blog" data-title=" QQ">
          <i class="icon icon-qq"></i>
        </a>
      </li>
      <li>
        <a class="facebook share-sns" target="_blank" href="https://www.facebook.com/sharer/sharer.php?u=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/" data-title=" Facebook">
          <i class="icon icon-facebook"></i>
        </a>
      </li>
      <li>
        <a class="twitter share-sns" target="_blank" href="https://twitter.com/intent/tweet?text=《Vue组件的定义及基本用法》 — 欢迎参观小灰灰的网站哟 ヾ(◍°∇°◍)ﾉﾞ ~&url=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/&via=http://yoursite.com" data-title=" Twitter">
          <i class="icon icon-twitter"></i>
        </a>
      </li>
      <li>
        <a class="google share-sns" target="_blank" href="https://plus.google.com/share?url=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/" data-title=" Google+">
          <i class="icon icon-google-plus"></i>
        </a>
      </li>
    </ul>
 </div>


<div class="page-modal wx-share" id="wxShare">
    <a class="close" href="javascript:;"><i class="icon icon-close"></i></a>
    <p>扫一扫，分享到微信</p>
    <img src="//api.qrserver.com/v1/create-qr-code/?data=http://yoursite.com/2019/07/24/Vue组件的定义及基本用法/" alt="微信分享二维码">
</div>




    <script src="//cdn.bootcss.com/node-waves/0.7.4/waves.min.js"></script>
<script>
var BLOG = { ROOT: '/', SHARE: true, REWARD: true };


</script>

<script src="//unpkg.com/hexo-theme-material-indigo@latest/js/main.min.js"></script>


<div class="search-panel" id="search-panel">
    <ul class="search-result" id="search-result"></ul>
</div>
<template id="search-tpl">
<li class="item">
    <a href="{path}" class="waves-block waves-effect">
        <div class="title ellipsis" title="{title}">{title}</div>
        <div class="flex-row flex-middle">
            <div class="tags ellipsis">
                {tags}
            </div>
            <time class="flex-col time">{date}</time>
        </div>
    </a>
</li>
</template>

<script src="//unpkg.com/hexo-theme-material-indigo@latest/js/search.min.js" async></script>








<script>
(function() {
    var OriginTitile = document.title, titleTime;
    document.addEventListener('visibilitychange', function() {
        if (document.hidden) {
            document.title = 'Where are you going ?';
            clearTimeout(titleTime);
        } else {
            document.title = 'As long as you love me ~';
            titleTime = setTimeout(function() {
                document.title = OriginTitile;
            },2000);
        }
    });
})();
</script>



</body>
</html>
